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Fundamentals of Physical Geography

2nd Edition
James Petersen
ISBN: 9781133606536

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BuyFindarrow_forward

Fundamentals of Physical Geography

2nd Edition
James Petersen
ISBN: 9781133606536
Textbook Problem

Diagram and label the characteristic parts of an alpine glacier.

To determine

The diagrammatic representation of an alpine glacier and with its parts.

Explanation

Alpine glaciers are confined to high altitudes, i.e., the Mountains and flow down the valley. In general, they flow from higher altitude to lower altitude. Example: Alps and Himalayas. There are three types of alpine glaciers, namely cirque, valley and piedmont glaciers. Alpine glaciers grow in constantly cold temperatures below the freezing point. They are shorter in length, ranging from few hundred meters to a few hundred kilometers long. They move due to gravity and pressure. The mechanism involved in their movements are internal plastic deformation (plastic flow) that occurs within the ice itself because of the weight of the glacier (the force of gravity). Many glaciers in more temperate environments also move by slipping along their base when water is present (basal sliding), and by local melting, downslope flow, and refreezing of water along the base of the glacier.

From a perspective of mass balance, alpine glaciers consist of two functional zones...

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